Shutter-fastener



4UNITED STATES l PATENT OFFICE.

ADAM HELLER, OF BALTIMORE, MARYLAND.

sHuTTER-FAsTl-:NER-

SPECIFICATION forming part of Letters Patent No. 542,051, dated July 2,1895.r

Application filed April 11, 1395. Serial No. 5451311' (N0 milden To allwhom t may concern:

Beit known that I, ADAM HELLER, a citizen of the United States, residingat Baltimore, in the State of Maryland, have invented certain new anduseful Improvements in Shutter.

Fasteners, of which the following is a specification.

This invention relates to a shutter bower or fastener, and has for itsobject to provide for this purpose an improved device wholly independentof the ordinary hinge.

In theaccompanyin g drawings, illustrating the invention, Figure l showspart of a window and one shutter with the improved fastener. Fig. 2shows a view of part of a window-frame, a shutter hinged thereto, andthe improved bower or fastener. Fig. 3 is a horizontal section of theparts shown in Fig. 2 on the line 3 3. Fig. 4 is a view of part of theshutter, being an inner side thereof, and shows the fastener applied.Fig. 5 is a plan view of the lower circular crown.

The shutter A is mounted, as usual, on ordinary hinges b, securing ittothe frameV C, and which permit the shutter to be lifted off.

The bower-fastener is composed of two part-s. One part has an arm drigidly secured to the window-frame C by screws e. This arm carries acircular toothed crown f. The other part has an inverted crown g,corresponding in shape and size to the crown fand is above the latter.Thesetwo circular toothed crowns intermesh or engage with each other, asshown in Fig. 2. The upper crown g is pivoted by a pin h to a lever I,which extends across the edge j of the shutter', and the said lever ispivoted at kon the shutter so as to raise the upper crown and disengageits teeth from` the lower crown f. The pivot 7c is secured to a plate L,and the latter is attached to the edge j of the shutter by screws m. Aslot n is formed on the shutter under said plate L where the lever Icanfreely work. The lever hasa laterally-proj ectin g end I', which extendscrosswise on the inner side or inner surface of the shutter, and thisend serves as a handle to grasp when it is desired to disengage theupper crown from the lower one for the purpose of opening or closing theshutter. A turnbutton or cam o is pivoted by a screw jp on the shutterand has position below the said lateral end I. When this cam is turnedupward, as in Fig. 4, it abuts against the said lateral end I and holdsthe lever from moving and keeps the two crowns engaged or locked. Whenthis cam is turned down, (indicated by broken lines,) the lever is freeto be tilted for the purpose of lifting the upper crown g anddisengaging it from the lower crown. The two circular toothed crowns ofthe bower are mounted relative to the window-frame and shutter, so thatthe center or axis of each crown is coincident with aperpendicular lineextending through the pintle of the hinges b. By this construction ofbower the shutters may belocked when closed, locked when wide open, andlocked at any angle or intermediate position between entirely closed andwide open.

The device may be applied to any shutter without disturbing the existinghinges.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In a shutter fastener, the combination of a hinged shutter; a rigidnon-revoluble toothed crown, f, independent of the said hinges andhaving a lateral, plate by which it is secured rigidly to thewindow-frame; a plate, L, se- A cured to the edge of the shutter over aslot therein; a lever, I, pivoted to the said shutter plate and workingin said slotand provided with an end which projects laterally crosswiseon the inner side of the shutter; an inverted toothed crown, g, alsoindependent of the hinges and attached to the outer end of said lever;and a turn-button pivoted on the shutter independently of the lever andadapted to abut against the said laterallyprojecting end thereof.

In testimony whereof I affix my signature in the presence of twowitnesses.

ADAM HELLER; Witnesses:

GrIAs. B. MANN, J r., C. CALVERT HINES.

